Midway, with an on-time performance rate of 81.33 percent in 2016, ranked 19th on OAG's list of the 20 most punctual large airports. Large airports are defined as those that had 10 to 20 million departing seats each year. O'Hare did not make the most recent list.

Last year, O'Hare ranked 20th among North American airports, with an on-time performance rate of 78.29 percent, making it the "most improved airport in North America and eighth most improved in the world." O'Hare moved up from a 71.4 percent on-time performance rate in 2014 to 78.3 percent in 2015. Midway was ranked No. 12 in 2015.

The OAG report also focused on the timeliness of international and domestic airline carriers.

That on-time performance rate put Delta in the No. 3 spot and United in sixth place on the list of most punctual North American carriers.

The No. 1 spot on the North American list went to Hawaiian Airlines, which also holds the top spot among global carriers with an on-time performance rate of 89.87 percent.

At an investor conference last year, United said it is trying to catch up to Delta when it comes to getting passengers and bags to their destinations on time. Currently, United takes about 6 percent longer than its competitors, officials said at the conference.